20516631534332 has 12 divisors (see below), whose sum is σ = 37142177777880. Its totient is φ = 9904580740656.

The previous prime is 20516631534319. The next prime is 20516631534341. The reversal of 20516631534332 is 23343513661502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88433756498 + ... + 88433756729.

It is an arithmetic number, because the mean of its divisors is an integer number (3095181481490).

Almost surely, 2^{20516631534332} is an apocalyptic number.

It is an amenable number.

20516631534332 is a deficient number, since it is larger than the sum of its proper divisors (16625546243548).

20516631534332 is a wasteful number, since it uses less digits than its factorization.

20516631534332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176867513260 (or 176867513258 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 44.

The spelling of 20516631534332 in words is "twenty trillion, five hundred sixteen billion, six hundred thirty-one million, five hundred thirty-four thousand, three hundred thirty-two".